Monkey D Luffy Children The Grandline Series Figure is an official product created for fans and collectors looking for licensed merchandise. The Monkey D. Luffy Children The Grandline Series Figure is a collectible item dedicated to One Piece, centred on one of the most recognisable characters in the series. It is a piece intended for those looking for official One Piece merchandise for collecting or display. Part of The Grandline Series line, this Monkey D. Luffy figure fits into the segment of collectible figures sought after by anime and manga fans. It is a relevant option to complete a One Piece collection with an identifiable piece focused on the character.